JPS6280294A - Treating solution for anodic oxidation - Google Patents
Treating solution for anodic oxidationInfo
- Publication number
- JPS6280294A JPS6280294A JP22019385A JP22019385A JPS6280294A JP S6280294 A JPS6280294 A JP S6280294A JP 22019385 A JP22019385 A JP 22019385A JP 22019385 A JP22019385 A JP 22019385A JP S6280294 A JPS6280294 A JP S6280294A
- Authority
- JP
- Japan
- Prior art keywords
- sulfuric acid
- anodic oxidation
- soln
- bath
- solution
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000003647 oxidation Effects 0.000 title abstract description 7
- 238000007254 oxidation reaction Methods 0.000 title abstract description 7
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000005725 8-Hydroxyquinoline Substances 0.000 claims abstract description 6
- 229960003540 oxyquinoline Drugs 0.000 claims abstract description 6
- MCJGNVYPOGVAJF-UHFFFAOYSA-N quinolin-8-ol Chemical compound C1=CN=C2C(O)=CC=CC2=C1 MCJGNVYPOGVAJF-UHFFFAOYSA-N 0.000 claims abstract description 6
- 238000007743 anodising Methods 0.000 claims description 12
- 230000005587 bubbling Effects 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 10
- 239000007789 gas Substances 0.000 description 6
- 239000000654 additive Substances 0.000 description 4
- 238000005187 foaming Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000011549 displacement method Methods 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- FWFGVMYFCODZRD-UHFFFAOYSA-N oxidanium;hydrogen sulfate Chemical compound O.OS(O)(=O)=O FWFGVMYFCODZRD-UHFFFAOYSA-N 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Printing Plates And Materials Therefor (AREA)
- Preventing Corrosion Or Incrustation Of Metals (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は陽極酸化処理液に関し、特にアルミニウム又は
アルミニウム合金の陽極酸化浴として用いられる処理液
に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an anodizing solution, and particularly to a solution used as an anodizing bath for aluminum or aluminum alloys.
アルミニウム又はその合金（以下単にＡｔという）は、
通常、防食、装飾等の意味で陽極酸化処理をすることが
多い。その陽極酸化処理は硫酸等の希薄水溶液中で被処
理物、すなわちｋＡを陽極とし、他の溶解消耗しない通
電材（例えば黒鉛、ニッケル等）を陰極として、両極間
に電流を通ずることによって実施される。Aluminum or its alloy (hereinafter simply referred to as At) is
Usually, anodizing treatment is often performed for corrosion protection, decoration, etc. The anodic oxidation treatment is carried out in a dilute aqueous solution such as sulfuric acid by using the object to be treated, that is, kA, as the anode and another non-dissolving and consumable current-carrying material (e.g., graphite, nickel, etc.) as the cathode, and passing a current between the two electrodes. Ru.
陽極酸化を硫酸水浴液中で実施した場合、その通電中に
陰極、陽極を問わず、かなりの気体の発生が認められる
。この現象は、水溶液中の水分の電気分解によるもので
あり、陰極には水 □素、陽極には酸素が発生する。When anodic oxidation is carried out in a sulfuric acid water bath, a considerable amount of gas is generated during energization, regardless of whether it is at the cathode or the anode. This phenomenon is due to electrolysis of water in an aqueous solution, with hydrogen being generated at the cathode and oxygen at the anode.
ところで、これらの気体が発生する場合は、通常気泡と
なって溶液から空中に流出するが、その際少量の溶液と
ともにいわゆるミストの状態となって出てゆ □くこ
とが多い。これらミストは、溶液中の成分をそのまま含
んでいるため、作業環境を著しく ：汚染し、処理装
置の寿命を短かくすることはいうまでもなく、作業者の
健康を著しく害する。By the way, when these gases are generated, they usually form bubbles and flow out of the solution into the air, but in this case, they often come out in the form of a so-called mist along with a small amount of solution. Since these mists contain the components in the solution as they are, they significantly pollute the working environment, shorten the life of the processing equipment, and seriously harm the health of the workers.
本発明者は、上記従来技術における有害なミストの発生
を防ぐため、硫酸系陽極酸化処理浴 □に添加剤を加
える研究を重ねた結果、８−ヒト 、ロキシキノリン
を添加することにより発泡量を ：′大幅に低減させ
うることを見出した。本発明は 、−この知見によっ
て光取されたものであって、硫 ：酸水溶液に、８−
ヒドロキシキハンを加工て ゛なることを特徴とする
陽極酸化処理液である。As a result of repeated research on adding additives to the sulfuric acid-based anodizing bath □ in order to prevent the generation of harmful mist in the conventional technology, the present inventor found that the amount of foaming can be increased by adding 8-human and roxyquinoline. :'We found that it can be significantly reduced. The present invention has been made based on this knowledge, and the present invention is based on this knowledge, in which 8-
This is an anodizing solution characterized by processing hydroxykihan.
本発明において硫酸を主体とする陽極酸化処理液に重加
する８−ヒドロキシキノリンの量は［１０１〜４０ ？
／Ｌ、好ましくは１〜５０ ｆ／ｌであり、生活である
硫酸水浴液の硫酸濃度はα０１〜Ｓ、０ｍ０ｔ／４好ま
しくはα１〜ｌｏｍＯＬ／４特に好ましくは［１９〜２
．３ ｍｏｔ／Ｌである。陽極酸化処理時の液温は凝固
点〜漣点の間の任意の温度でよく、電流密度はα５ Ａ
／ ｄ ｍ”以上、好ましくはα５〜五〇Ａ／ａｍ”、
特に好ましくはα８〜２． ＯＡ／ｄｍ”である。In the present invention, the amount of 8-hydroxyquinoline added to the anodizing solution mainly containing sulfuric acid is [101 to 40?
/L, preferably 1 to 50 f/l, and the sulfuric acid concentration of the daily sulfuric acid bath solution is α01 to S, 0m0t/4, preferably α1 to lomOL/4, particularly preferably [19 to 2
．． 3 mot/L. The liquid temperature during anodizing treatment may be any temperature between the freezing point and the ripple point, and the current density is α5 A.
/ d m” or more, preferably α5 to 50 A/am”,
Particularly preferably α8-2. OA/dm”.
本発明の陽極酸化処理液を使用すれば、気泡の発生量は
硫酸卑俗の時の少なくとも８０チ、最大α１％の程度ま
で減少させることが可能である。By using the anodizing solution of the present invention, the amount of bubbles generated can be reduced by at least 80% compared to using sulfuric acid, and by a maximum of α1%.
以下、本発明の具体的な実施例をあげ本発明を更に詳述
する。Hereinafter, the present invention will be explained in further detail by giving specific examples of the present invention.
実施例１
硫酸１．５ ｍｏｌ、／Ｌ からなる陽極酸化処理浴を
調製し、８−ヒドロキシキノリンを添加剤トシて（Ｌ
２ ｆ／を加え、この浴中ｒ、０８Ａ１１００を電流密
度１．２ Ａ／ ｄ ｍ” 、浴温５℃で１時間陽極酸
化し、発生する気体を液上置換法で採取した。Example 1 An anodizing bath consisting of 1.5 mol/L of sulfuric acid was prepared, and 8-hydroxyquinoline was added as an additive (L
2 f/ was added, and 08A1100 was anodized in this bath at a current density of 1.2 A/d m'' and a bath temperature of 5° C. for 1 hour, and the generated gas was collected by liquid displacement method.
実施例２
硫酸１．７ ｒｎｏＬ／Ｌからなる陽極酸化処理浴を調
製し、８−ヒドロキシキノリンを添加剤としてｓ ｏ
ｔ７を加え、この浴中でＪ工５Ａ１１００ を電流密
度１．２ Ａ／ｄｍ” 、浴温５℃で１時間陽極酸化し
、発生する気体を液上置換法で採取した。Example 2 An anodizing bath consisting of 1.7 rnoL/L of sulfuric acid was prepared, and 8-hydroxyquinoline was added as an additive.
t7 was added, and J-K5A1100 was anodized in this bath at a current density of 1.2 A/dm'' and a bath temperature of 5° C. for 1 hour, and the generated gas was collected by a liquid displacement method.
比較例１〜２
上記実施例のそれぞれ添加剤を加えない条件で陽極酸化
し、実施例と同一の方法で発生気体を採取した。Comparative Examples 1 and 2 Anodic oxidation was carried out under conditions in which no additives were added in each of the above Examples, and the generated gas was collected in the same manner as in the Examples.
実施例１〜２、比較例１〜２０発生気体量の測定結果を
下記表１に示す。The measurement results of the amount of gas generated in Examples 1 to 2 and Comparative Examples 1 to 20 are shown in Table 1 below.
ｈｒ” 〕
〔発明の効果〕
以上の実施例に示す通り本発明による陽極酸化処理液は
翫従米浴と比して処理時の発泡か著しく少なく、発泡に
よる不具合を全て解決することができる。[Effects of the Invention] As shown in the above examples, the anodizing solution according to the present invention generates significantly less foaming during treatment compared to the wet rice bath, and can solve all problems caused by foaming.
復代理人 内 １） 明 復代理人 萩 原 亮 − 復代理人 安 西 篤 天Sub-agent: 1) Akira Sub-agent Ryo Hagi Hara - Sub-Agent Atsushi Yasu Nishi
Claims (1)
とを特徴とする陽極酸化処理液。An anodizing solution characterized by adding 8-hydroxyquinoline to an aqueous sulfuric acid solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22019385A JPS6280294A (en) | 1985-10-04 | 1985-10-04 | Treating solution for anodic oxidation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22019385A JPS6280294A (en) | 1985-10-04 | 1985-10-04 | Treating solution for anodic oxidation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6280294A true JPS6280294A (en) | 1987-04-13 |
| JPH0571679B2 JPH0571679B2 (en) | 1993-10-07 |
Family
ID=16747341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22019385A Granted JPS6280294A (en) | 1985-10-04 | 1985-10-04 | Treating solution for anodic oxidation |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6280294A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0238584A (en) * | 1988-07-28 | 1990-02-07 | Hitachi Ltd | Anticorrosive surface treatment of metal |
| JPH02125895A (en) * | 1988-11-02 | 1990-05-14 | Hitachi Ltd | Method and apparatus for performing anticorrosive surface treatment of metal |
-
1985
- 1985-10-04 JP JP22019385A patent/JPS6280294A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0238584A (en) * | 1988-07-28 | 1990-02-07 | Hitachi Ltd | Anticorrosive surface treatment of metal |
| JPH02125895A (en) * | 1988-11-02 | 1990-05-14 | Hitachi Ltd | Method and apparatus for performing anticorrosive surface treatment of metal |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0571679B2 (en) | 1993-10-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |